1. The largest hotel in the world is being built in Saudi Arabia, with an astonishing 10,000 rooms.
2. The Bosco Verticale (Vertical Forest) is a complex of two residential skyscrapers in Milan
More than 2000 tree species, including towering shrubs and trees, are arranged across their exteriors.
3. Liziba Station, Chongqing, China - Located in the southwest of China, it is unique and famous because it allows light trains to pass through a residential building.